Height Map Problem behind Glass object.

[Anonymous]

I have a glass object with a height map plugged in displacement when I render the scene it's look fine but when I use another glass obj in front of it the render doesn't show the height data and the glass is rendered without it. What am I missing here?

[Anonymous]

I uploaded the photos.

[lee_griggs]

How high is your Specular Ray depth ? Do you have Caustics enabled and Opaque disabled for the glass object?

[Anonymous]

Specular Ray depth is 10 and Opaque is enabled for both glass and Caustics is enabled for the glass object without height map. Better quality with more ray but nothing fixed yet.

[Anonymous]

And here without Caustics

[lee_griggs]

Disable Opaque. It looks like there is something there. What does it look like with 5AA?

[Anonymous]

It has 5 AA and Opaque disabled for both glasses.

[joie]

In my opinion, there are several ray depths and your specular one is OK. The problem could be the transparency one. Or you can just try to boost every rey depth and see what happens.

[Anonymous]

It doesn't fix it even with 10 Specular and Transmission ray depth 😐

[Anonymous]

Is any Solid Angle's staff here?

[maxtarpini]

Probably but none have a magic wand 🙂 better you upload a scene that can reproduce your problem

[Anonymous]

Just try it yourself. You will see there is problem with glasses.

[maxtarpini]

there's no problem with displacement behind multiple transp/refr objects. that's why I'm suggesting you to upload a scene 🙂

[joie]

As I said, the displacement is not your problem, your problem is that the surface doesn't reflect, so the problem should be in the ray depth limit. Did you notice that there is a kind of "total" depth limit?, so, even if you boost your specular and refraction ones, those obey the total limit also.

[Anonymous]

Did you use glass shader for the object below the glass?

[Anonymous]

What is your glass shader settings? @Max Tarpini

[Anonymous]

The problem is not fixed by reducing the Ray Depth even with 50 20 20 rays still the same issue.

[Anonymous]

Hi, Does it have thickness?

[Anonymous]

here is the scene.zip I couldn't upload the displacement map it's more than 2MB so just add a checker and try it.

[teddude75]

@Alireza Nateghi

light2_glass_main is not subdivided. Also vector space should be tangent. Try get the displacement to work with a grey shader before adding all those ray depth bounces.

TED